Anomalous E-region ion layers in twilight conditions. Experiment and model
Effective recombination coefficients in the D- and E-regions during auroral absorption events
MST-Radar Lee Wave Observations during Winter 1996/97 in Northern Scandinavia
The Anomalous Winter Ion Layer - A Mystery Waiting for a Sounding Rocket
Formation mechanisms for low-altitude sporadic-E layers - Results from the METAL campaign